Optical apparatus, control method, and non-transitory computer-readable storage medium

An optical apparatus as an interchangeable lens apparatus which is interchangeably attached to an image-capturing apparatus which performs focus detection by a phase difference detection method using an image sensor configured to capture an object image formed by an image-capturing optical system, the optical apparatus comprising:

• the image-capturing optical system;
• and
• a controller having a processor which executes instructions stored in a memory or having circuitry, the controller being configured to transmit, to the image-capturing apparatus, information for causing the image-capturing apparatus to acquire correction data unique to the image-capturing optical system for correcting a focus sensitivity of the image-capturing optical system and corresponding to a blur-spread amount on the image sensor.

An optical apparatus as an interchangeable lens apparatus which is interchangeably attached to an image-capturing apparatus which performs focus detection by a phase difference detection method using an image sensor configured to capture an object image formed via an image-capturing optical system, the image-capturing apparatus configured to calculate a drive amount of a focus element using a defocus amount acquired by the focus detection and a focus sensitivity of the image-capturing optical system, the optical apparatus comprising:

• the image-capturing optical system;
• and
• a controller having a processor which executes instructions stored in a memory or having circuitry, the controller being configured to acquire correction data unique to the image-capturing optical system for correcting the focus sensitivity and corresponding to a blur-spread amount on the image sensor, and transmit the correction data to the image-capturing apparatus.

A control method for an optical apparatus as an interchangeable lens apparatus which is interchangeably attached to an image-capturing apparatus which performs focus control by a phase difference detection method using an image sensor configured to capture an object image formed via an image-capturing optical system, the control method comprising:

• a step of transmitting, to the image-capturing apparatus, information for causing the image-capturing apparatus to acquire correction data unique to the image-capturing optical system for correcting a focus sensitivity of the image-capturing optical system and corresponding to a blur-spread amount on the image sensor.

A control method for an optical apparatus as an interchangeable lens apparatus which is interchangeably attached to an image-capturing apparatus which performs focus control by a phase difference detection method using an image sensor configured to capture an object image formed via an image-capturing optical system, the image-capturing apparatus configured to calculate a drive amount of a focus element using a defocus amount acquired by the focus detection and a focus sensitivity of the image-capturing optical system, the control method comprising:

• a step of acquiring correction data unique to the image-capturing optical system for correcting the focus sensitivity and corresponding to a blur-spread amount on the image sensor;
• and
• a step of transmitting the correction data to the image-capturing apparatus.

A non-transitory computer-readable storage medium for storing a computer program that enables a computer to execute a control method for an optical apparatus as an interchangeable lens apparatus which is interchangeably attached to an image-capturing apparatus which performs focus control by a phase difference detection method using an image sensor configured to capture an object image formed via an image-capturing optical system, the control method comprising:

• a step of transmitting, to the image-capturing apparatus, information for causing the image-capturing apparatus to acquire correction data unique to the image-capturing optical system for correcting a focus sensitivity of the image-capturing optical system and corresponding to a blur-spread amount on the image sensor.

A non-transitory computer-readable storage medium for storing a computer program that enables a computer to execute a control method for an optical apparatus as an interchangeable lens apparatus which is interchangeably attached to an image-capturing apparatus which performs focus control by a phase difference detection method using an image sensor configured to capture an object image formed via an image-capturing optical system, the image-capturing apparatus configured to calculate a drive amount using a defocus amount acquired by the focus detection and a focus sensitivity of the image-capturing optical system, the control method comprising:

• a step of acquiring correction data unique to the image-capturing optical system for correcting the focus sensitivity;
• and
• a step of transmitting the correction data to the image-capturing apparatus.